Ventilator



' Patented Mar. 10, 1925 UNITED STATES PATENT OFF ICE.

Application fled as, 1922. Serial llo. saints.

Toallwhomz'tma concern:

Be it known that ANDREW L.- BIKER, a citizen of the United States, and resident 'of Fairfield, in the county of F airfield and 8 State of Connecticut, has invented certain new and useful Improvements in. Venti-lators, of which the following is a specification. Y *9 I This invention relates to a ventilator, use- 1 ful for many purposes, but more especially adapted for use as a closure for transoms,

doorw s, windows, panels, or the like.

An 0 ject of the invention is to provide a ventilator which will be a novel, improved 1 and compact article ofxmanufacture, capable of ins'ertion for use with a minimum of effort by unskilled workmen, 'without danger of destroying the advantageous features for which the ventilator has been devised.

A further object is to providean article of manufacture of the present character which will be simple, durable, eflicient and reliable, and which can be inexpensively manufactured, all of the larger elements of the ventilator desirably consisting of sheet metal.

A still further obiect is to provide a ventilator consisting of a frame having a plurality of s aced apartlouvers some of which are fixed and some of which are pivoted to turn on their axes to be swung in one direction to completely close the space within the frame and to be swung in opposite direction to procure passa e ways between the res cc tive louvers wit out 0 ening a direct ine 0f vision through the rame.

Another ob'ect is to-equip the ventilator with dependa 1e operating mechanism for manipulating, the pivoted louvers on their 40 pivots to 0 en and closed positions, the operating mec anism including a practical arrangement limiting the de cc to which the louvers can be turned on t eir pivots,

Yet another object is to provide an article of the kind mentioned having' fixed and pivoted louvers so constructed andmounted I that pass e ways of the maximum dimensions possi le mayexist between the respective louvers when the pivoted louvers are swung to open position, the pivoted louvers when swung to closed ositlon cooperating with the fixed louvers a jacent them to positively close all of the spaces within the frame; In the accomplishment'of the present object I preferably utilize L-shaped louvers-and I mount the louvers in spaced apart frame members, every other louverbeing fixedly mounted and the louvers between the fixed louvers being .pivotally mounted.

Still further objects are to so mount the pivoted louvers that they can be mampuated with a minimum of effort and will, at

the same time, dependably remain in open or closed adjusted positions; to so construct and arrange each fixed and each pivoted louver that there will be no interference by the fixed louvers with the manipulation of the pivoted louvers to completely closed position or to wide open positlon to procure passage ways of maximum dimension; "and to provide a ventilator structure, consisting of louvers and oppositely positioned frame members by wh ch the louvers are sup,- ported, which can be readily incorporated in. a'transom, doorwaykwindow, panel, or the 'like, \in such manner that there will be no lines of vision at the locations where the louvers make connection with the frame members or between the outermost louvers of the louver structureand adjacentframe members comprising part of the ventilator itself or part of the building or other construction in which the ventilator is incorporated, all as will be clearly set forth.

With the above objects in view, as well as others which will appear as the specification proceeds, the invention comprlses the construction, arrangement and combination of parts as now to be fully described and as hereinafter to be specifically claimed, it being understood that the disclosure herein is merely illustrative of the princi les and meant to in no way limit the spirit of the invention, changes in details of construction and arrangement of parts being permissible so long as within the scope of the appended claims.

In the accompanying drawing forming a part of this specification,

Fig. 1 is an elevational view of the novel ventilator as when incorporated in a transom, doorway, window, paneh'or the like, showing the pivoted louvers in open position;

Fig, 2 is an enlarged longitudinal sectiona view of the ventilator showing the pivotedlouvers in open posltlon;

. I r Fig. 3 is a viewcorrespondmg with the showing of Fig. 2, but disclosing the louvers in closed posit ona- I Fig. 4 isan enlarged vertical sectional view as on line 44 in Fig.2; I

Figs. 5 and 6 are enlargedvertical sec tional views each showing a fragment ofa pivoted louver and spaced apart frame members upon which the louver is mounted, as on line 6-6 in Fig. 2;

Fig. 7 is an enlarged sectional view of one end portion of the ventilator corresponding with the showing'of "Fig. 2, dc tailing the mechanism for operating the pivoted louvers;

Fig. 8' is, an enlarged sectional view de- I tailing the manner in which the frame members maybeconnected and Fig. 9 shows a fragment of a ventilator having a Vill'ltllllj' form offrame member mcorporated, m accordance with the principles of the invention, ina transom, doorway, window, panel, or the like.

The ventilator consists of a frame of -rectaugular configuration,louvers fixed in the frame, louvers pivoted in the frame, and arranged between the fixed louvers, all of the louvers being spaced apart, and mechanism for swinging the pivoted louvers on their pivots to open and close the spaces with-.

A manner in which the members 10,11,

12 and 13 may be joined is best shown in Fig. 8, where in an end portion ofa .memher, say 12, and its flanges 16 are drawn or offset inwardly as denoted at 18, and the flanges, say 14, of the member 10 fit snugly over the drawn in oroffset portions 18 to The connectlonalign with the flanges 16. between the members 10 and 12 may be made by means of a rivet 19 passing through said flanges l4vand drawn in or 'oflset portions 18. a bushing 20, extending between the drawn in or offset portions and through which the rivet extends, serving to allow the rivet to clamp the portions 18 and flanges 14-'agai11st each other. By the provision of elongated slots (not shown) in the drawn in or offset portions or in the flanges themselves, the members can be slightly adjustable with respect to each other, asavill be understood. For convenience, I have in the drawing designated. all of the drawn in or offset portions 18, all of the rivets 19, and all of he bushings-20, the C HI GClEl HS between all of-theplates desirably being made in the same manner. -l v The flanges and theirdrawn in or ofi'set portions are preferably perpendicular to the members 10, 11, 12 and 13, respectively, and

all of theflanges extend inwardly of the frame. The ends of certain of the frame members are "desirably contiguous with or closely adjacent to the bodies of other frame members. See Fig. 8.

The louvers are preferably composed of sheet metal. As shown, they are mounted in the frame to be perpendicular to the members 10 and 11,.and parallel with the members 12 and 13, and all of the louvcrs are of L-shape, although they could be ofdifl'erent construction.

Certain of the louvers, denoted 21, have their opposite ends fixed in themembers 10 and 11, respectively, each fixed louver having' an ear 22 upon its arm 23 secured to the member 10 and an ear 24 upon its arm 25 secured to the member 11, all of the ears 22'preferably extending in the same direction atright-angles from the arms 23, and

all of the ears 24 preferably extending in. the same direction at right-angles from the arms 25. Numeral 49- designates rivets securing the ears 22 and 24 to the members 10 and 11, respectively.- I

Between each fixed louver is a pivoted louver, denoted 26, having an ear 27 upon its arm 28 pivoted upon the member 10, and i an ear 29 upon this same arm pivoted upon the member 11, the arm.30 of each louver 26 being free of ears. The ears27 and 29 preferably extend at" right-angles in the same direction from the arms 28 of the louvers 26, and as shown are situated within the space between the arms 28 and 30.

The pivoted louvers are mounted in the members 10 and 11 in the manner best shown in Figs. 2, 3, 5. and 6. That is to say, each of the ears 27 is provided with a hole rotatably receiving a drawn portion 31 of the metal of the member or plate 10 of the frame, and eachpf the ears 29 is drawn as at 32 to rotatably enter anannular, flange 33 consisting of upwardly drawn metal. of the member or plate 11' of the frame, the pivotal points for/the louvers being arranged adjacent the opposite ends of the arms 28 thereof preferably close to the midwidths of said arms.

The cars 29 extend beyond the pivotal ears 29 to slide upon ;the plate 11 of the frame and each of the-ears has metal drawn therefrom and rotatably entering holes 35 at uniform distances apart in the operating bar.

The mechanism for moving the-operating 1 bar longitudinally to turn the pivoted louvers on their pivots in a manner which will be obvious, consists of a spindle 36 mounted in the flanges or their drawn in or offset portions adjacent a' corner of the "ventilator andhaving a crank 37 and a mabushing 20, already described, situated directly above and close to the operating bar.

The metal of the flanges may be drawn asdenoted at 41 to provide a dependable bearing for the spindle 36, and ther-U-shaped part of the operating bar is preferably arranged aboutthe crank so that the slight forward ,and rearward movements of .the

ill)

bearings is thus insured.

operating bar when .moved longitudinally to adjust the louvers impart slight endwise movements to the spindle;

against displacement. vThe spindle has. a

; reduced end 42 mounted in a bearing 41 whereby the larger diameter of the spindle viously, the position of the spindle in its As shown, the end or outermost louvers are preferably fixed ones, and each has at least one portion extending toward a frame member 12, 13 situated directly between the flanges of said frame member. That is, the free edges of the. arms of the louver 43 extend toward the frame member. 12 to be situated directly between the flanges 16 preferably against each flange, while the connected edges of the arms-of the end or outermost louver 44 extend toward the frame member 13 to be situated directly between the flanges 17 preferably against the face of the frame member 13.

The arms 28 and 30, and 23 and 25, of

each pivoted and fixed louver, respectively,

are desirably of equal dimensions, the arms 28 and 30 being of slightly less width than the arms 23 and 25 in order that no interference will-be. offered to manipulation of the pivoted louvers to closed or to wide open position. -The 'vertices of all ofth louvers are preferably in alignment with each other and parallel with the longitudinal center of each member or plate 12, 13. The louvers are shown spaced at equal distances apart and when in wide open position the arms 23 and 30, and 25 and 28, respectively, are

parallel with each other, the arms 23, 30.

h aving the same angular relation with respect to the front of the frame as the arms 25, 28 have with relation to the rear thereof.

As will be m st cl r g- .2, he dis- Evidently, the operating bar will thus insure 'the'spindle tance between each louver and those adjacent it 'is just insuflicient to allow a direct line pf vision through the frame whenthe. ivoted louvers are in wide 0 en position. en the ivotedlouvers are 1n closed -position the rec edges of the arms 28, 30 en-' gage thearm's-25, 23 of the fixed louvers, re-

spectively, as best disclosed in Fig. 3.

The throw of the crank 37 determines the distance the operating bar can move longitudinally, and hence limits the degree to which the pivotedlouvers can be turned on their pivots.

In assembling the louvers with the frame memberslO, 11, I desirably-utilize rivets as suggested in Fig; 5 to first sedure'the ears 22, 27 to the frame member 10. I then associate ears 24, 29 with the fram member 11 in the manner already set h and I may utilize rivets 46 as suggested in Figs. '6,

to insure the relative positions of the ears 24, 29 and-the frame member 11.

By drawing the metal of the frame memher 11 upwardly to form the annular flanges 33, I provide a space 47 between ears 29 and the framemember 11 to afford clearance for the longitudinal sliding movements of the operating bar upon the frame member 11.'

This will be most clear fromFig. 6. As denoted at 48' in Fig. 4, the ends of the arms 23 of the fixed louvers adjacentvthe frame member 11 are cut away to offer no inter- Iference to manipulation of the operating Y The ventilator as illustrated and described is of very simple construction. The frame consists of but four sheet metal plates rigidly secured to each other.- The louvers each consist of a single piece of sheet metal bent to L-shape and mounted in'the frame. The operating mechanism consi sts of an operating bar and crank with manipulating handle. The elements going to make the ventilator are relatively few and the positions of all of the elements are positively insured,

no liability whatsoever existing that any, element can-become dislocated or impaired.

stance of each ventilator one less than half of the louvers need be just the louvers.

'To incorporate the ventilator in its -position of use allthat isnecessary is to fit the frame into a transom, doorway, window,

panel, r the like, d n ted, A, the flanges of manipulated to adthe frame members 10, 11, 12 and 13 serving the purpose of incl'osing the ends of all of the louvers and interlapping with the outermost louvers in a manner to preserve the advantageous features of the ventilator.

In Fig. 9 I have shown a fragment of a ventilator having a variant form of-frame member incorporated in a transom, doorway, window, panel, or the like, denoted A-. As disclosed, 10' denotes a frame member of any construction different from that of .frame members '10, 11, 12 and 13 secured to the fixture 50 of the transom or the like A, as by means of screws 51, 52 representing a fixed or,a pivoted louver attached to the frame member 10' in any convenient manner. 53 represents panels attached to opposite surfaces of the fixture 50 and having 7 their end portions 54 protruding beyond the fixture 50 to envelope the ends of the louvers 52 after the fashion of the flanges of the members 10 and 11. Obviously,'panels 53 with protruding portions 54 (not shown) may be utilized to interlap the outermost louvers after the fashion of the flanges of tilator itself or part of the building or other construction in which the ventilator is incorporated. a

Having thus fully described the invention, what I claim as new and desire to secure b Letters Patent is:

1. A device of the character described, comprisin a frame including spaced apart members, li-shaped louvers having their opposite ends fixed in theme'mbers, L-shaped louvers between the fixed louvers and having their opposite ends pivoted in the members, all of the louvers being spaced apart, and means for swinging the pivoted louvers on their pivots to open position to allow passages through the frame and between all of the louvers or to closed position to interrupt all of said passages, said means including an operating bar pivotally associated with said pivoted louvers and resting upon and slidable upon one of said members.

'2. A device as specified in claim 1, wherein all of the louvers are spaced apart a distance just insuflicient to allow a direct line of vision through the frame when the pivoted louvers are in wide open position, and the pivoted louvers are of smaller dimension than the fixed louvers.

3. A device of the character described,

comprising a frame constituted by joined plates, each plate having flanges at the opposite edges thereof and exten ing inwardly of the frame, louvers having their opposite ends fixed in certain of the plates, louvers between the fixed louvers and having integral-ears pivoted in the same plates, all of the louvers being spaced apart, and means for swingjng the pivoted louvers on their pivots to open position to allow passages through the frame and between all of the louvers or to closed position to interrupt all of said passages, said means including an operating bar pivotally associated with said integral ears of the pivoted louvers and slidable on one of the said plates between its flanges.

4. The combination as specified in claim 3, wherein the fixed louvers are constructed to ofle'r no interference to manipulation of the operating bar. v

5. A device of the character described, comprising a rectangular frame consisting of joined plates, louvers having their opposite ends fixed to certain ofsaid plates, louvers having their opposite ends provided with integral ears pivoted to said mentioned plates, each pivoted louver being situated between two fixed louvers, and an operating bar for-manipulating the ivoted louvers, said operating bar bein slidable on one of said ,plates and pivota ly associated with the integral ear of each pivoted louver, and the fixed louvers being constructed to offer no interference to manipulation of the operating bar.

6. A device of the character described, comprising a rectangular frame consisting .of metallic plates having flanges, metallicv crating bar.

7. A device as specified in claim 6, wherein the outermost louvers are fixed and have portions interlapping with the flanges of the metallic plates of the frame.

8. A- device of the character described,

comprising a rectangular frame consisting of metalhc plates having flanges, metallic L-shaped louvers having integral ears upon their opposite ends fixed to certain of said plates, metallic L-shaped louvers having integral ears upon their opposite ends pivoted to said mentioned plates, each pivoted louver being situated between two fixed louvers, an operating bar for mani ulating the pivoted louvers, said operatin ar being slidable on one of said metallic p ates and pivotally associated with an integral ear of each pivoted louver, and a spindle with crank and operating handle for manipulating said pivoted louvers ontheir pivots, the operating bar beingarranged ad acent an end of each fixed and pivoted louver and the fixed louvers having cut-away portions to offer no interlf)erence to manipulation of the operating ar. y a

9. A device as specified inolaim 8, wherein the outermost louvers are fixed and have portions interlapping with the flanges of the metallic plates of the frame.

Si ned at Bridgeport, in the county of Fairheld and State of Connecticut, this 26th day of September, A. D. 1922.

ANDREW L. BIKER. 

